ONE MAN, in a World

Vigilance
{1}{w}: Regenerate.
ONE MAN can block any number of
nonlegendary creatures. When he blocks or is
blocked by more than one, he has double strike.
If a legendary creature died this turn,
ONE MAN must attack or block if able,
and gains Double Strike until end of turn.
When ONE MAN deals 3 or more combat
damage to an opponent, that opponent
sacrifices an artifact or nonbasic land.